Question
Asked Sep 20, 2019
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1. Which of the following would you find in the synaptic cleft of an alpha motor neuron and a muscle cell?

Calcium

Acetylcholine re-uptake transporter

Voltage-gated calcium channels

Acetylcholine

Dopamine

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Expert Answer

Step 1

A neuromuscular junction is a chemical synapse formed by the contact between a motor neuron and a muscle fibre. It is at the neuromuscular junction that a motor neuron is able to transmit a signal to the muscle fiber, causing muscle contraction.

Step 2

Acetylcholine (ACh), a small molecule neurotransmitter, diffuses across the synaptic cleft and binds to receptors on the cell membrane of the muscle fiber...

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Science

Biology

Animal Physiology and Biochemistry

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